Efficient energy saving coal powder combusting system

Abstract

The invention discloses an efficient energy saving coal powder combusting system. The system comprises a coal storing bucket, a coal grinding device, a mechanical spiral quantifying device, a combustor, a rear cyclone separator, a homogenizing furnace, an evaporator, a forced desulfurizer, a wet process dust collector and a chimney, wherein the coal grinding device for improving the fineness of coal particles is arranged at one side of the coal storing bucket, the mechanical spiral quantifying device for removing crystal water and external water in the coal particles is arranged at one side ofthe coal grinding device, the combustor is arranged at one side of the mechanical spiral quantifying device, the rear cyclone separator is arranged at one side of the combustor, the homogenizing furnace is arranged at one side of the rear cyclone separator, the evaporator is arranged at one side of the homogenizing furnace, the forced desulfurizer and the wet process dust collector are arranged at one side of the evaporator, and the chimney for discharging clean waste gas is arranged at one side of the wet process dust collector. The efficient energy saving coal powder combusting system has the effects that combustion is sufficient, temperature controllability is strong, safety is high, and a computer only spends 1-2 seconds on controlling the stop of a quantitative coal powder conveyingspiral machine.

Description

technical field [0001] The invention relates to the field of coal grinding and combustion equipment, in particular to a high-efficiency and energy-saving pulverized coal combustion system. Background technique [0002] my country is the largest coal producer and consumer in the world. Coal accounts for about 75% of my country's total energy demand, far exceeding the world average of 27%. Therefore, it is particularly important for our country to make full use of coal. For the consumption process of coal, the main problems are: firstly, there are different types of coal, and different types of coal have different characteristics, such as Datong coal, anthracite, lignite, lean coal, thick and light briquette...etc. Coals of various grades and conditions, such as lean coal, rich coal, high-moisture coal, low-moisture coal, volatile coal, non-volatile coal, high-viscosity coal, and low-viscosity coal, all have their own inherent characteristics, resulting in The ignition and c...

AI Technical Summary

Problems solved by technology

For the consumption process of coal, the main problems are: firstly, there are different types of coal, and different types of coal have different characteristics, such as Datong coal, anthracite, lignite, lean coal, thick and light briquette...etc. Coals of various grades and conditions, such as lean coal, rich coal, high-moisture coal, low-moisture coal, volatile coal, non-volatile coal, high-viscosity coal, and low-viscosity coal, all have their own inherent characteristics, resulting in The ignition and combustion requirements of pulverized coal are also different, otherwise it will cause difficulties in ignition and subsequent combustion; Completely cause waste of energy and pollution to the environment; the third is that the unburned pulverized coal particles will adhere to the wall of the combustion port and the inner wall near the combustion port, resulting in slagging and high-temperature corrosion. It greatly affects the service life of the burner, which is especially prominent for power plant pulverized coal boilers and various pulverized coal boilers

Due to the fact that in the actual use process, it is easy to cause gas backflow combustion and explosion phenomenon, and there are potential safety hazards

Images